Paper stock distributor for beaters



March 3, 1953 F, HAYES 2,630,044

PAPER STOCK DISTRIBUTOR FOR BEATERS iled June 21,1948 s Sheets-Sheet 1 9/! s 4% w x Q I I l l a I i E: e

\D x Q N 3 lm zm-og Wanlclfczyes) March 3, 1953 Filed June 21, 1948 F. HAYES PAPER STOCK DISTRIBUTOR FOR. BEATERS 3 Sheets-Sheet 2 F. HAYES 2,630,044

PAPER STOCK DISTRIBUTOR FOR BEATERS Filed June 21, 1948 March 3, 1953 3 Sheets-Sheet 5 ff'anklfqyes,

men Er Patented Mar. 3, 1953 UNITED STATES PAPER STOCK DISTRIBUTOR FOR BEATERS Frank Hayes, Hoosick Falls, N. Y., assignor to Noble. 8a Wood Machine Company, Hoosick Falls, N. Y., a corporation of New York Application June 21, 1948, Serial N 0. 34,269

3 Claims. 1

This invention relates to a machine of the Hollander type for beating stuii such as wood fibers to prepare the same for use in they manufacture of paper, pulp and like products, and has particular reference to improvements in a Inachine of this type wherein the stuil beating means, comprising a bed plate and a cooperating beater roll, is advantageously located outside of the stuii-containing tub and has the stuff pumped thereto from the tub, as disclosed, for example, in my abandoned application, Serial No. 757,823, and as distinguished from the conventional Hollander machine wherein the bed plate and its cooperating beater roll are disadvantageously disposed in the stuff-containing tub.

The object of my present invention is to provide simple, practical means to insure that the stuff pumped from the tub to the stuff beating means will be distributed substantially uniformly along the length of the latter so that throughout its length said stuff beating means will perform substantially equal. amount of work and will operate smoothly, evenly and at highest efficiency.

With the foregoing and other objects in View, which will become more fully apparent as the nature of the invention is better understood, the same consists in a machine of the type mentioned including stuff distributing means embodying the novel features of constructions. combination and arrangement of parts as are illustrated by way of example in the accompanying drawings and as will be hereinafter more fully described and claimed.

In. the accompanying drawings, wherein like characters of reference denote corresponding parts the different views:

Fig. l is a transverse section through a stuff beating machine constructed in accordance with the invention.

Fig. is a transverse section on an enlarged scale of a portion of the machine shown in Fig. 1.

Fig. 3. is a horizontal section on the line 3--3 of Fig. 2; and

Fig. 4 is a rear elevation, partly broken away, of the structure illustrated in Figs. 2 and 3,

Referring to the drawings in detail, it will be observed that while the present machine is of the general l-Iollander type in that it includes a tub i0 contain the stuff to be beaten, and stuff heating means designated generally as H and comprising a bed plate 52 and a cooperating beater r011 53, it is more pa ul rly f the type disclosed in my abandoned application, serial No, 757,823 and characterized by location of the stuff heating means outside of the tub Hi, as distin- 2 guished from the conventional Hollander machine wherein the stuii heating means is disposed with in the stuff-containing tub.

In accordance with the present invention the. bed plate I2 of the stuff beating means [I is, located above the tub Ill or at least above the level of the stunt" contained in said tub, preferably at one side of the latter and adjacent thereto; the beater roll it is disposed horizontally above said bed plate; a propeller M or other suitable means is provided for circulating and mixing; the stuff in the tub it; piping l5 leads from the bottom of the tub Iii t the stuff beating means I l; a pump IE5 is provided for causing flow of stuff from the tub [0 through said piping ii to the stufi beating means I I, and suitable means I1 is provided for the delivery or return flow of beaten stuff from the stuff heating means H to the tub 10.

Referring now particularly to the present means for distributing the stuff to the stuff heating means H substantially uniformly along the length of the latter, so that throughout its length said stuii' heating means will perform substantially equal amounts of work and will operate smoothly, evenly and at highest efliciency, it will be observed that the piping 15, as it approaches the stuff beating means H, is divided into two branches l5, l5 having discharge ends l6, [6, respectively, which are spaced outwardly from and face toward the beater roll i3 whereby the stud discharged from them is directed toward said roll. It will further be observed that the discharge ends it of said branches i5 are disposed above the plane of the bed plate i2 and are spaced apart, longitudinally with respect to the stuff heating means ll, so that each serves to supply stuff to a related end section of said stufl beating means.

A shelf structure or front approach, designated generally as is and substantially coextensive in length with the stud beating means i l, is disposed at the outer s de of said heating means and extends, from a suitable location below the. discharge ends of the conduit branches l5, [5, at a downward and inward inclination to the outer side of the bed plate I2. Over this front approach stuff discharged from the ends it: of the conduit branches i5 flows between the bed plate 12 and the beater roll it? so that it is beaten by the cooperation of said beater roll with said bed plate in known manner. In this connection it is understood, of cours that h beat r roll driven in any suitable manner in the direction of the arrow a in Figs, 1 and 2 so that its under side travels in the direction of flow of the stuff to be beaten. It will further be understood in this connection that the bed plate [2 and the beater roll is may be of the constructions described in my aforesaid abandoned application, Serial No. 757,823, or of any other suitable constructions. The front approach It includes a shelf structure i l which extends from the inner side of the bed plate E2 to the adjacent side of the tub iii and over which the beaten stuff flows back to said i tub. Obviously, therefore, the stufi is beaten repeatedly until it is ready for use.

Extending at a downward and inward inclination in front of the discharge end l6 of each of the branches l of the piping I5 is a stuff dividing and deflecting element or strut 19 the under side of which is of V-shape in cross section. The apex of the said V-shaped under side of each of said elements it is disposed in a plane including the axis of its related branch pipe dischargeend E5. The stuff discharged from each branch pipe discharge end it impinges against the under side of the related element l9 and thereby is divided and deflected in opposite directions longitudinally with respect to the stuff beating means II as well as downwardly. Moreover at and extending downwardly with respect to the inner end of each of the elements 19 is a stuff intercepting and deflecting element 20 against the front face of which the central portion of the related stream of discharged stuff impinges. The said front face of each of the elements at is of conical form and its apex and the apex of the V-shaped under side of the element !9 meet at a point 2! approximately in alinement with the axis of the discharge end IE5 of the related piping branch l5. Consequently, the central portion of the related stream of discharged stufi impinges against the said conical front face of said element 29 and thereby is deflected laterally in opposite directions and also downwardly. In this connection and as is manifest, due to the division and lateral deflection of some of each stream of the stuff by the elements It and to the fan-like dispersion of the remainder of each stream of the stuff by the elements Bil, each stream of stuff is spread substantially uniformly over the front approach l8. Further in this connection the spaced apart relationship of the discharge ends [5 of the piping branches i5 and their locations longitudinally with respect to the stuff beating means I I is such that the stuif spread by the elements i 9 and 20 is distributed substantially uniformly substantially throughout the length of the front approach It and the stuff beating means H. Therefore, substantially equal amounts of stuff are fed between the bed plate 12 and the beater roll H3 at all points along their lengths with the result that the machine operates smoothly, evenly and at high efficiency.

Preferably an apron 22 is disposed at the outer side of the lower portion of the beater roll l3 and cooperates with the front approach [8 to provide a mouth at the inner side of said front approach to direct the stuff between the bed plate i2 and the beater roll l3. Preferably, too, a suitable valve 23 is interposed in the piping I5 for regulating flow of the stuff to the beating means While the piping l5 has been illustrated and described as having two discharge branches, it will, of course, be understood that the length of the stuff beating means II is arbitrary and that said piping l5 may have only a single discharge end and associated stufi distributing elements or 4 any desirable number of discharge ends each with like associated stuff distributing elements, depending upon whether said beating means is of short or long length.

From the foregoing description considered in connection with the accompanying drawings, it is believed that the construction and operation of the present machine will be clearly understood and its advantages appreciated. It is desired to point out, however, that while only a single structural embodiment of the invention has been illustrated and described, the same is readily capable of specifically different structural embodiments within its spirit and scope as defined in the appended claims.

I claim:

1. In a paper stock beater having a beater roll and cooperating bed plate mounted within a frame, and walls forming a stock inlet chamber the bottom of which constitutes a front approach the length of the beater roll, means for distributing the stock evenly across the front approach comprising a stock inlet pipe entering the inlet chamber and adapted to direct stock pumped through it onto the said front approach, a V-shaped strut secured to the beater frame above the said inlet pipe and arranged to slant inwardly and downwardly in the path of the stock, and a conical deflector head integral with and depending from the said V-shaped strut with its axis substantially coincidental to the axis of the inlet pip-e whereby the upper part of the stock issuing from the inlet pipe will impinge against the V-shaped strut and be deflected downward and substantially equally to each side and whereby the lower part of the stock issuing from the inlet pipe will impinge against the conical deflector head and be deflected uniformly downwardly and radially.

2. In a paper stool; beater having a beater roll and cooperating bed plate mounted within a frame, and walls forming a stock inlet chamber the bottom of which constitutes a front approach the length of the beater roll, a stock inlet pipe, means pumping stock through the stock inlet pipe, the said pipe constructed and arranged to direct the stock stream onto the front approach and means for distributing the stock uniformly across the front approach comprising a deflector head suspended from the frame within the stock inlet chamber above the front approach and in the path of the stock as it issues from the inlet pipe, the said deflector head extending transversely or the stock path substantially less than the length of the front approach, having a transversely curved surface and being disposed at a downward and inward slanting angle whereby stock impinged against it will deflect dOWll-r ward passing under the said deflector head an to each side thereof.

3. In a paper stock beater having a beater roll and cooperating bed plate mounted within a frame, and Walls forming a stock inlet chamber the bottom of which constitutes a front approach to the beater roll, a stock inlet pipe emitting into the inlet chamber, means pumping stock under velocity through the stock inlet pipe into the inlet chamber, and means for distributing such stock across the front approach comprising a deflector head suspended from the frame above the front approach and in the path of the stock as it issues from the inlet pipe, the said deflector head extending transversely of the stock path substantially less than the length of the front approach, constructed and arranged with a transversely curved under surface to deflect the said stock downward beneath the said deflector head and Number to each slde thereof. 11371616 2,061,662

REFERENCES CITED The following references are of record in the N mb r file of this patent: 208,042 10 38,580

6 UNITED STATES PATENTS Name Date De Cew May 10, 1921 Knoll Nov. 24, 1936 Knoll Aug. 9, 1938 FOREIGN PATENTS Country Date Great Britain Dec. 13, 1923 Netherlands July 15, 1936 

